Windows Phone 8.1 update for T-Mobile's Lumia 925 and Lumia 521 coming later this year

Back in the month of April, T-Mobile announced that it will be rolling out the Windows Phone 8.1 update to the Lumia 925 and the Lumia 521 over the summer. As we head into fall, there is no word of when the update will be available to users on either device, with a tweet from T-Mobile's support account only mentioning that an update will be available "later this year."

Other than that, there is no clear timeline as to when users can expect to see an update to Windows Phone 8.1. Meanwhile, AT&T has started the Windows Phone 8.1 OTA update for its Lumia 925 late last month.